Question

multiple select question
select all that apply
what types of conditions may lead to adaptive radiation?
□ a species undergoes duplication of chromosomes via allopolyploidy.
□ gene flow is reestablished between two previously isolated populations that have been re - cently reconnected.
□ a species occurs in an environment with few other species and many resources.
□ a catastrophic event leads to mass extinction.
□ islands form through volcanic activity and are subsequently colonized.
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Explanation:

• Allopolyploidy can cause rapid genetic change and open up new evolutionary paths, potentially leading to adaptive radiation.
• In an environment with few species and many resources, a species can diversify to exploit different niches, promoting adaptive radiation.
• Mass extinctions clear ecological niches, allowing surviving species to diversify and fill those niches through adaptive radiation.
• Newly - formed islands provide a unique set of resources and few competitors initially, which can lead to adaptive radiation as colonizing species diversify.
• Gene flow between previously isolated populations generally reduces genetic differences and is not typically a cause of adaptive radiation.

Answer:

A. A species undergoes duplication of chromosomes via allopolyploidy.
C. A species occurs in an environment with few other species and many resources.
D. A catastrophic event leads to mass extinction.
E. Islands form through volcanic activity and are subsequently colonized.